Available DDR4 with Ram Effectiveness Chart : by effective latency (Please submit your Ram overclocks to help build database- details inside) : r/overclocking
Memory Hierarchy Changes: Double L3, Faster Memory - The AMD 3rd Gen Ryzen Deep Dive Review: 3700X and 3900X Raising The Bar
What is RAM speed and how does it affect my PC's performance? - Newegg Insider